Police are calling for help in their search for a man who failed in his attempt to steal money from a Somme Parade dairy on Sunday.
Detective Constable Nadine Staples from Whanganui police said the man entered Pylon Dairy on Somme Pde about 11:45am on Sunday.
He had what police are calling a "small weapon" and demanded money from the shopkeeper.
After leaving the store without taking anything the man was followed by a member of the public in a white van, Staples said.
The male was wearing a black cap, black face mask, black hoodie or orange t-shirt, knee-length light coloured shorts over black leggings, and distinctive striped sneakers.